NeroVision Express mpeg-2-vob no sound

I am trying to move all my VHS movies to DVD. The problem I am having is caused by NeroVision when creating VOB files from the mpeg2 file(s) that I made. The vob files work, when playing it in PowerDVD, but there is NO sound whatsoever.
What am I doing wrong missing? Can this be done?

This is my process:
1. Play the VHS on the VCR through my Hauppauge WinTV Theater card and capture it with Intervideo WinDVR to a mpeg2 DVD compliant file (as the call it).
2. Use nero express to load the mpeg2 file(s) and then burn the DVD vob-files to DISK.
3. No sound in the "DVD-image".

seems i had that problem once. no sound at all, so i tried burning it anyways, guess what, the DVD had sound, it was just a hiccup in the playback I guess (i'd try that on a DVD-RW just in case it is something different)